Bicycle helmet



FIG. 1 is a perspective view of a bicycle helmet embodying the design.

FIG. 2 is a front elevation view of the design shown in FIG. 1 .

FIG. 3 is a rear elevation view of the design shown in FIG. 1 .

FIG. 4 is a left elevation view of the design shown in FIG. 1 .

FIG. 5 is a right elevation view of the design shown in FIG. 1 .

FIG. 6 is top plan view of the design shown in FIG. 1 ; and,

FIG. 7 is a bottom plan view of the design shown in FIG. 1 .

The broken lines in the drawings illustrate portions of the bicycle helmet that form no part of the claimed design. 

CLAIM We claim the ornamental design for a bicycle helmet, as shown and described. 